Furnace



(No Model.) 6 Sheets-Sheet 1. W. SWINDELL.

FURNACE.

No. 463,176. Patented Nov. 17,1891.

(No Model.) 6 Sheets-Sheetfi.

W. SWINDELL.

FURNACE.

"No. 463,176. Patented Nov. 17, 1891..

WITNESSES:

W. SWINDELL.

Patented Nov. 17, 1891.

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Patented Nov. 17, 1891.

INVE /OZMM 4 4 A1 M (No Model.) '6' Sheets-Sheet e. W. SWINDELL. FURNACE.-

Patented Nov. 17, 1891.

UNITED g STATES PATENT ()FFICE.

\VILLIAM SVJINDELL, OF ALLEGHENY, PENNSYLVANIA.

FURNACE.

SPECIFICATION forming part of Letters Patent No. 463,176, dated November 17, 1891.

Application filed March '7, 1891- To aZZ whom it may concern:

Be it known that 1, WILLIAM SWINDELL, a citizen of the United States, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented or discovered a certain new and useful Improvement in Furnaces, of which improvement the followingis a specification.

The invention described herein relates to certain improvements in regenerative furnaces, and has for its object such a construction and arrangement of hearths and passages connecting them to the regenerating-chambers as will permit of the connection of several hearths with the same regenerating-chamber, the hearths being so arranged relative to each other that the operators around one of hearths will not interfere with those around the other hearths.

In general terms the invention consists in the construction and combination, all as more fully hereinafter described and claimed.

In the accompanying drawings, forming a part of this specification, Figure l is a view partly in section and partly in plan, the plane of sect-ion beingindicated by the line mm, Fig. 5. Fig. 2 is a sectional elevation, the plane section being on the line 1 y, Fig. 1. Fig. 3 is a horizontal section 011 the line B B, Fig. 2. Fig. 4 is a similar view on the line A A, Fig. 5. Fig. 5 is a sectional elevation, the section being taken 011 the line 2 .2, Figs. 1 and 3; and Fig. 6 is a similar view on the line t 1, Figs. 1 and 3.

In the practice of my invention I construct long regenerative chambers 1 1 and 2 2" for the gas and air, said chambers being of suit able Width and height and of a length proportional to the number of, heating or melting hearths 3 3", &c., desired. lhese chambers are connected in the usual manner by conduits at with the stack and with a suitable source of gas-supply, said conduits being provided with suitable reversing and regulating valves of the usual or any desired construc tion. On top of the regenerating-chambersI construct two, four, or more heating or melting hearths 3 3 3", &c., said hearths being arranged in pairs, as shown in Fig. 1, the two members of a pair being arranged back to back, but out of line by a distance equal to Serial No. 384,184- (No model.)

the width of two flues or passages connecting the regenerating-chambers with the hearths. From the hearths 3 extend the flues 6, which for convenience are termed the hearth-fines, and connect with the vertical lines 7, constructed on the median line of the furnace, and these vertical fines are connected by the lines 8 (to nned chamberflues with the regenerative chambers 1 1.

By reference to Fig. 5 it will be seen that the lines 6, 7, and 8 form a continuous Z- shaped passage from the hearth 3 to the regenerating-chambers 1 1, the hearth 3 being arranged above the regencrating-chambers 2 and the flues 8 passing between the hearth 3 and the regenerating-chambers 1 1,- over which the hearth 3 is located. From the opposite end of the hearth 3 extend the hearthliues 9, connecting with the vertical flues 10, which in turn connect with the horizontal chamber-fines 11, leading to the regenerating chambers 2 2, as shown in Figs. 1, 2, and 3. These chamber flues 11 extend under the hearth 3 and are parallel with and directly below the heartlrtlue 9, as will be seen by reference to Figs. 1 and :3, thereby forming a c011- tinuous :Ishaped passage from the hearth 3 to the regenerating-chambers 2 2.

As shown by reference to Figs. 1, 2, 3, and 6, the hearth-ii ues 6, vertical flues 7, and chamber-fines 8 form continuous j-shaped passages from the hearth 3 to the regenerating chambers 1 1", the chamber-fines 8 being parallel with and directly below the hearthlines 6, and pass between the hearth 3 and the regencrating-chambers 1 1.

By reference to Figs. 1, 2, and 3 it will be seen that the opposite side of the hearth 3 is connected with regencrating-chambers 2 2 by continuous Z-shaped passages formed by the hearth-fines 9, vertical lines 10, and charm ber-flues 11.

From the foregoing it will be understood that each of the hearths is connected with the regenerating-chambers by Z and :I shaped passages, the former extending to one pair of chambers and the latter to the other pair of regencrating-chambers.

As shown in Figs. 2, 3, 4, 5, and (5, a chamber 12 is formed between the two sets or pairs of regenerating-chambers, said chamber extending along under the series of vertical fines and connecting by a series of supplemental chambers 18 with said flues, forming, in fact, a continuation or enlargement of said flues. At the lower ends of the supplemental chambers are placed doors or valves 14, which are normally held in a closed position by suitably-arranged weights 15. Any dust or other foreign matter drawn from the hearth will be deposited in the supplemental chambers until a sufficient quantity has accumulated to overbalance the weights 15, when the doors or valves will turn and, dropping their load into the chamber 12, will return to a closed position under the action of the weights, or the doors may be lowered at any time and the supplemental chambers cleared.

As shown in Figs. 1, 5, and 6, valves 16 are arranged in the several hearth-fines, whereby the combustion in each hearth may be entirely out out of operation or regulated independent of the other hearths and without interfering with their operation. The hearth 3 is connected to the regenerating-chambers 1 1 and 2 2 by flues 6 7", 8", 9 10 and 11, arranged in the same manner as the hues of the hearth 3, and the hearth 3 and its fines are similar to the hearth 3.

It will be readily understood that the number of hearths which may be arranged and connected to the same regenerating-chambers is only limited by the distance the gas and air can be caused to travel along the regencrating-chambers.

I am aware that a furnace for melting glass has been constructed with a single hearth with a central offshoot or wing, all parts of such hearth being in free and continuous comdition, so that there need not be any delay in starting the other furnaces.

I claim herein as my invention- 1. In a furnace, the combination of two pairs of regenerating-chambers, two non-communicating hearths arranged back to back upon said chambers, fines connecting each hearth with each regenerating-chamber, and valves for reversing the operation of the furnace, substantially as set forth.

2. In a furnace, the combination of two pairs of regenerating-chambers, a series of hearths arranged in pairs back to back upon the regenerating-chambers, flues connecting each hearth with each regenerating-chamber, and valves for reversing the operation of the furnace, substantially as set forth.

3. In a furnace, the combination of two pairs of regenerating-chambers, two or more hearths arranged upon said chambers, fiues v connecting each hearth with each regenerating-chamber, and valves arranged in'said flues, substantially asset forth.

4. Ina furnace, the combination of two pairs of regenerating chambers, a chamber arranged between said pairs, two or more hearths arranged upon said chambers, and fines connecting each hearth with each regenerating-chamber,said flues having valved connections with the intermediate chamber, substantially as set forth.

5. In a furnace, the combination of two pairs of regenerating-chambers, a chamber arranged between said pairs, two or more hearths arranged upon said chambers, :lshaped fiues connecting each hearth with two of the regenerating-chainbers, and Z-shaped flues connecting each hearth with theother chambers, the vertical portions of the :I and Z shaped flues having valved connections with the intermediate chamber, substantially as set forth.

In testimony whereof I'have hereunto. set my hand.

WILLIAM SWINDELL.

Witnesses:

DARWIN S. \VOLCOTT, FRANCIS X. BARR. 

